<template>
  <div class="login-container">
    <el-row>
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <el-form class="login_form" :model="loginForm" :rules="rules" ref="loginForms">
          <h1>Hello</h1>
          <h2>欢迎来到龟龟甄选</h2>
          <el-form-item prop="username">
            <el-input :prefix-icon="User" v-model="loginForm.username" ></el-input>
          </el-form-item>
          <el-form-item type="password" prop="password">
            <el-input :prefix-icon="Lock" v-model="loginForm.password" show-password></el-input>
          </el-form-item>
          <el-form-item>
            <el-button class="login_btn" :loading="loading" type="primary" size="default" @click="login" >登录</el-button>
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue';
import { reactive , ref } from 'vue';
import useUserStore from '@/store/modules/user.ts';
import {  useRouter } from 'vue-router';
import { ElNotification } from 'element-plus';
import { getTime } from '@/utils/time.ts';
// 获取el-from表单
let loginForms = ref();
// 获取路由器
let $router = useRouter();

const loading = ref(false);

const userStore = useUserStore();
// 收集账号与密码的数据
let loginForm = reactive({ username: 'admin', password: '111111' });

// 登录按钮方法
const login = async () => {
  // 保证全部表单校验通过再发请求
  await loginForms.value.validate();
  loading.value = true;
  try {
    await userStore.userLogin(loginForm);
    // 编程式导航挑战
    await $router.push('/');
    ElNotification({
      type: 'success',
      message: '登陆成功',
      title:`HI,${getTime()}好`
    });
    loading.value = false;
  } catch (error) {
    loading.value = false;
    ElNotification({
      type: 'error',
      message: (error as Error).message,
    });
  }
};

const validatorUserName = (_rule: any,value: string,callback: Function) =>{
  if (value.length >= 5)  callback();
  else  callback(new Error('账号长度至少五位'));

}

const validatorPassword = (_rule: any,value: string,callback: Function) =>{
  if (value.length > 5)   callback();
    else  callback(new Error('密码长度至少五位'));
}

// 定义表单规则对象
const  rules = {
  username:[
    // { required: true, message:'用户名不能为空', trigger:'change' }
    {validator: validatorUserName,trigger:'change'}
  ],
  password:[
    // { required:true, min: 6, max: 10, message:'密码长度在6-10之间', trigger:'change' }
    {validator: validatorPassword,trigger:'change'}
  ]
}
</script>

<style scoped lang="scss">
.login-container {
  width: 100%;
  height: 100vh;
  background: url("@/assets/images/background.jpg") no-repeat;
  background-size: cover;
}

.login_form {
  position: relative;
  width: 80%;
  top: 30vh;
  background: url("@/assets/images/login_form.png") no-repeat;
  background-size: cover;
  padding: 40px 40px;

  h1 {
    color: white;
    font-size: 40px;
  }

  h2 {
    font-size: 20px;
    color: white;
    margin: 20px 0;
  }

  .login_btn {
    width: 100%;
  }
}
</style>